Apparatus for baling fibers and the like

ABSTRACT

A baling press for fibers and like materials in which the bale is initially or partially compressed in a fiber collection chamber and then brought to final compression outside of the chamber. The press comprises a compression ram and a restraining ram between which the fibers in the chamber are initially compressed. Upon reaching predetermined compression in the chamber the two rams move together, pushing the fiber from the chamber. Means such as the beams or other framework of the press frame positively arrest movement of the platen carried by the restraining ram so that final compression of the bale takes place without substantial load on the restraining ram, permitting the use of a much lighter restraining ram than would be required if it had to take the full force of compressing the bale.

United States Patent [191 Van Doorn et a1.

[ 1 Mar. 12, 1974 [22] Filed:

[ APPARATUS FOR BALING FIBERS AND THE LIKE [73] Assignee: Lummus Industries, 1nc., Columbus, Ga.

June 9, 1972 [21] Appl. No.: 261,293

5/1938 Great Britain 100/244 Primary ExaminerBilly .1. Wilhite Attorney, Agent, or Firm-Jennings, Carter &

Thompson 5 7 ABSTRACT A baling press for fibers and like materials in which the bale is initially or partially compressed in a fiber collection chamber and then brought to final compression outside of the chamber. The press comprises a compression ram and a restraining ram between which the fibers in the chamber are initially compressed. Upon reaching predetermined compression in the chamber the two rams move together, pushing the fiber from the chamber. Means such as the beams or other framework of the press frame positively arrest movement of the platen carried by the restraining ram so that final compression of the bale takes place without substantial load on the restraining ram, permitting the use of a much lighter restraining ram than would be required if it had to take the full force of compressing the bale.

sires; 1-50 PATENTEIJ m 1 2 I974 SHEET 1 0F 4 PATENTEUIRR 12 i974 SHEET 2 0F 4 lalJ' 1 APPARATUS FOR BALING FIBERS AND THE LIKE Our invention relates to baling presses for inherently springy materials such as fibers including many of the man-made fibers as well as natural fibers such as cotton.

Our invention contemplates a baling press which involves a fiber receiving chamber into which the fiber is charged by apparatus such as a tramper, a compaction ram having a platen disposed to enter the chamber from one end and a movable fiber restraining ram carrying a platen and located adjacent the other end of the chamber, whereby the bale is partially compressed between the platens while in the chamber, is ejected therefrom while under such partial compression and subsequently is finally compressed after being ejected from the chamber.

Another object is to provide apparatus of the charac ter designated in which there is means positively to arrest the movement of the restraining platen while final compression of the bale is taking place, making possible the relief of all pressure on the restraining ram, permitting the use of a relatively low power ram for actuating the restraining platen Another object is to equip the chamber with retractable means to hold the fiber in the chamber until it is engaged between said platens, such means preferably comprising dogs at the end of the chamber which receivcs the compression platen and door-like means at the end of the chamber adjacent the restraining ram, together with means to release both the dogs and doorlike members substantially when the platens are brought into fiber receiving position relative to the respective ends of the chamber.

Apparatus illustrating features of our invention -is shown in the accompanying drawings forming a part of this application in which:

FIG. 1 is a side elevational view of a double box baling press having a tramper or similar apparatus mounted to fill one of the chambers while the other box or chamber is located beneath the compaction and restraining rams;

FIG. 2 is an enlarged side elevational view of one of the fiber receiving chambers,'certain parts being broken away and in-section; I

- FIG. 3 is a detail sectional view taken generally along line 3--3 of FIG. 2; 7

FIG. 4 is a detail fragmental view drawn to an enlarged scale and showing some of the details of the pivotally mounted dogs located at the upper ends of the chamber; and,

FIG. 5 is a wholly diagrammatic view illustrating the formation of a bale and final compaction thereof.

Referring now to the 'drawings for a better understanding of our invention we show the same as embodying a pair of fiber receiving chambers indicated generally by the numerals and 11. In a manner somewhat conventional in the art these chambers may be mounted on heavy cross members 13 and 14 which are pivoted to a central column 16.

Mounted over one of the chambers, for instance the chamber 11 in the position shown, is a tramper indicated generally at 17. In the manner well understood, the tramper feeds cotton into the compartment 10 or 11 which is beneath the same, and partially packs the fiber in the chamber. When the chamber is full it is rotated to bring it into position where chamber 10 is shown in FIG. 1. I

The press also comprises upper transverse beams 18 and lower transverse beams 1.9. These beams are tied together by a plurality of tie members 21 thus forming a very strong press frame.

Mounted from the upper framework of the press frame is an upper compaction ram 22 which carries a platen 23 on the lower end of the rod 24 thereof. The platen 23 is of a size to enter into the upper ends of the chambers and to force the cotton therein outwardly, as will appear.

At the bottom of the frame is mounted a restraining ram 26 the piston rod 27 of which carries a lower restraining platen 28. As will' appear as the description proceeds, a charged one of the chambers is brought between the platens 23 and 28 and the fiber is moved downwardly through the chamber, the downward movement of the platen 28 being positively arrested by reason of the fact that the same comes to rest against the lower beams 19 of the press. The rams 22 and 26 I may be hydraulically actuated in the manner understood in the art.

The chambers land 11 are reinforced on their external surfaces by members 29 so as to permit some compaction of the fiber while in the chamber.

As best shown in FIGS. 3 and 4, means is provided adjacent the upper end of the chambers 10 and 11 and at the lower ends thereof to hold the cotton under slight compaction as it is forced into the chambers by the tramper 17. In view of the fact that these means are identical a description of one of the chambers, for instance chamber 10, will suffice for both.

Pivotally mounted in bearings 31 are shafts 32. Secured to the shafts 32 are upwardly extending arms 33. Pivotally mounted in thevupper ends of the arms 33 are shafts 34 and secured to the shafts 34 as by welding are a plurality of depending arms 36. Each of the arms 36 carries a dog 37 which enters a slot in the side wall of the chamber. Springs 38 anchored to the upper shafts 34 as at 39 and to the lower shafts 32 as at 41 serve to bias the dogs inwardly to the full line position shown in FIG. 3. However, on the downstroke of the tramper the dogs can move to the dotted line position shown in FIG. 3 so that a layer or bat of fiber pressed downwardly is then trapped beneath the dogs, awaiting the delivery of another layer or bat from the tramper. In this way, in view of the fact that the bottom of the chamber is closed as will appear, fiber is built up into the chamber until a predetermined quantity, such as 500 pounds, has been placed therein. I

The bottom of the chambers are closed by means of a pair of plate-like door members 42 and 43. These members are mounted at their outer ends on vertically arranged arms 44 and 46 which are secured to shafts 47 and 48 in turn mounted in bearings I 49 carried by the chambers. Preferably the doors are relatively thin so that there will be minimum space between the restraining platen and the ends of the chamber walls adjacent which said doors pass when the platen is in fiber receiv ing position.

Also secured non-rotatably to the shafts 47 and 48, at each end thereof, are links 51 and 52. As shown, these links cross and are connected by pins 53 and 54. The pins 53 and 54 are operatively connected to the piston rods 56 and 57 of fluid pressure cylinders 58 and 59 which are mounted on the chambers.

The outer ends of the links 51 and 52 carry links 60 and 61 which are pivoted thereto as illustrated in FIG. 3. The upper ends of the links 60 and 61 are pivotally connected at 62 and 63 to links 64 and 66 which are secured non-rotatably to the shafts 32.

From what has been described so far it will be seen that while the dogs are free to operate in normal fashion while the fiber is being forced into the chambers by the tramper, when the cylinders 58 and 59 are energized the pins 53 move downwardly, rotating the doorlike members 42 and 43 to the dotted line positions of FIG. 3. This causes the links 60 and 61 to move downwardly, moving the entire dog assembly to the dotted line position of FIG. 3, in effect withdrawing the dogs from fiber retaining position within the chambers.

With the foregoing constructional details in mind it is now possible more fully to explain and understand the functioning and advantagesof our improved press. First, referring to FIG. it will be seen that the compression ram 22 and the restraining ram 26 may be tied together hydraulically as shown. Thus, a valve 67 may supply fluid under pressure selectively to the upper end of the ram 22 through a line 68 or to the lower end thereof through a line 69. The ram 22 thus is double acting.

Pressure may be supplied to the lower end of the ram 26 through a line 71. In the line 71 is a valve or the like 72 which lets fluid under pressure flow upwardly through the line 71 whenever a predetermined pressure exists in the ram 26 due to the pressure exerted by the compaction ram 22 as will presently appear.

Referring again to FIG. 1 and assuming that the chamber has been filled with fiber the first action is to bring the platens 23 and 28 substantially into the position shown by actuating. their respective rams, that is, to bring them closely adjacent the upper and lower ends, respectively, of the chamber. With the rams thus positioned thecylinders 58 and 59 are energized, opening the door-like members 42 and 43 and removing the dogs 37. In view of the fact that the fiber was under some pressure due to the tramper, it will immediately expand upwardly and downwardly, in effect resting upon the lower platen 28 and being in contact with the upper platen 23. Pressure is now applied to the upper end of ram 22, moving platen 23 into the upper end of the chamber, the ram 26 at this time being under some pressure through the line 71. Continued downward movement of the platen 23 of'course continues to compress the fiber between the platens 23 and 28. Upon reaching a predetermined degree of compression the fluid'bleeds through line 71, past valve 72 and back to the return source, whereupon the rams move together, holding the partially compressed mass of fiber between them under such predetermined pressure. As soon as platen 28 strikes the lower sills 19, its movement is arrested. Continued downward movement of platen 23 puts the bale B under final compression. It will be noted that when the platen 23 comes to rest on the sills 19, the line 71a may be vented thus to relieve all pressure or strain on the lower ram 26. The bale is thus completely compressed, that is, brought to final compression, outside the chamber where it may be quite readily strapped by automatic strapping mechanisms, or otherwise handled.

In connection with the time when the restraining ram 28 commences to move, it is desirable for the fibers to be compressed in the lower part of the chamber at least to a degree where they will not tend to flow laterally to any excessive amount. In other words, the bale is partially formed in the chamber to the extent that it can be completely compressed outside the chamber as illustrated particularly in FIG. 5.

In view of the foregoing it will be seen that we have devised an improved press for springy fibers such as cotton and the like. Our invention is characterized by the simplicity of its parts and the fact that the restraining ram and platen can be of relatively light construction, requiring only the use of a fairly heavy compaction ram and platen. Also, while we have disclosed our invention in association with a downpacking press it will be seen that the principles thereof can be embodied in an up-packing press. That is to say, by reversing the rams and putting the restraining ram at the top and the compaction ram at the bottom, and by providing other forms of means for restraining the cotton in the bottom of the chambers, we can adapt the principles of our invention to an up-packing press. Thus, the restraining ram instead of coming into contact with the sills 19 would come into contact with sills 18 and thus take the load off the restraining ram.

While we have shown our invention in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various other changes and modifications without departing from the spirit thereof.

What we claim is:

1. In a baling press for fiber and similar material,

a. a press frame embodying beams and tie members,

b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in' the frame,

c. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber,

d. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber,

e. door-like means at the lower end of the chamber and means to open said door-like means whereby with the compaction and restraining means located adjacent the respective ends of the chamber the fiber may be forced out of the chamber while confined between the compaction and restraining means, an

f. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes operatively to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.

2. Apparatus as defined in claim 1 in which said doors are of plate-like construction, whereby said doors are relatively thin thus permitting the restraining means to closely approach the end of the chamber prior to opening said doors.

3. In apparatus for forming fibers and the like into a bale,

a. a vertically arranged chamber into which the fiber is packed under an initial compression which 'is lower than that of the finally compressed bale to be formed,

b. means adjacent the upper end of the chamber mounted for movement from fiber restraining position to withdrawn, fiber releasing position,

c. a pair of door-like members mounted on the chamber and disposed when closed to prevent fiber from passing out of the lower end of the chamber,

d. operating means for the fiber restraining means at the top of the chamber and the door-like members and effective when actuated in one direction to withdraw the fiber restraining means and open said door-like members and vice versa, and

e. upper and lowwer fiber engaging means the uppermost of which is adapted when the upper fiber restraining means are withdrawn to engage the upper end of the mass of fiber in the chamber and compress the fiber downwardly into and eventually push it out of the chamber, said lower fiber engaging means being adapted when said doorlike members are opened to engage the lower end of the mass of fiber and move downwardly along with the upper fiber engaging means after the fiber is compressed substantially to a predetermined degree.

4. Apparatus as defined in claim 3 including means positively to arrest the movement of the lower fiber engaging means, whereby continued downward movement of the upper fiber engaging means compressed the fibers to a predetermined degree of final compac tion, thus to form the bale.

5. Apparatus as defined in claim 3 in which the chamber is externally reinforced about its lower extent.

6. Apparatus as defined in claim 3 in which the means to operate the upper fiber restraining means and door-like members comprises a linkagesystem interconnecting the same, said power means being included in said linkage system to move the linkages of said system in directions to remove the fiber restraining means adjacent the upper end of the chamber and said doorlike members out of fiber restraining position and vice versa.

7. In a baling press for fiber and similar materials,

a. a press frame embodying beams and tie members,

b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in the frame,

0. means to hold the fiber in the chamber under initial compression which is lower than that of the finally compressed bale to be formed,

(1. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber,

e. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber,

f. there being door-like means at the lower end of the chamber and dogs adjacent the upper end thereof between which the fiber is held in the chamber prior to engagement thereof by the compaction and restraining means,

g. means to open said door-like members and release said dogs, whereby with the compaction and restraining means located adjacent the respective ends of the chambers the fiber may be forced out of the chamber while confined between the compaction and restraining means, permitting final compression of the bale outside of said chamber, and

h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.

8. Apparatus for forming fibers and the like into 10 bales,

a. a generally vertically oriented chamber open at its top and bottom ends,

b. a framework associated with said chamber comprising an upper beam passing generally horizontally across the chamber, 5

c. tie members connected to the beam and holding it against movement relative to the chamber,

d. an upper fiber compression means operatively associated with said upper beam and carrying a platen adapted to fit into the chamber and move downwardly through the chamber and out the lower end thereof,

e. a lower fiber restraining means directly facing said compression means constructed and arranged to move away from the lower end of the chamber in line with the movement of the upper compression means,

f. means to feed fiber into the upper end of the chamber,

g. means adjacent the lower end of the chamber to hold fiber therein while the same is being fed into the chamber and the structure of said apparatus providing clearance between the lower end of the chamber nd said fiber restraining means sufficient to permit removal of the finished bale laterally while the restraining means is in its lowest position.

9. Apparatus for forming fibers and the like into bales,

a. a generally vertically oriented chamber open at its top and bottom ends, b. a framework associated with said chamber comprising an upper beam passing generally horizontally across the chamber,

c. tie members connected to the beam and holding it against movement relative to the chamber,

d. an upper fiber compression means operatively associated with said upper beam and carrying a platen adapted to fit intothe chamber and move downwardly through the chamber and out the lower end thereof,

e. a lower fiber restraining means directly facing said compression means constructed and arranged to I move away from the lower end of the chamber in line with the movement of the upper compression means,

f. means to feed fiber into the upper end of the chamber,

g. means to hold said lower fiber restraining means in close proximity with the lower end of said chamber while the fiber is being fed into the chamber, and

h. means adjacent the lower end of the chamber to hold fiber therein while the same is being fed into the chamber and the structure of said apparatus providing clearance between the lower end of the chamber and said fiber restraining means sufficient to permit removal of the finished bale laterally while the restraining means is in its lowest position.

10. In apparatus for forming fibers and the like into bale, a. a vertically arranged chamber into which the fiber is packed under an initial compression which is lower than that of the finally compressed bale to be formed,

b. a pair of door-like members mounted on the chamber and disposed when closed to prevent fiber from passing out of the lower end of the chamber,

c. operating means for the door-like members and effective when actuated in one direction to withdraw said door-like members and vice versa, and

d. upper and lower fiber engaging means the uppermost of which is adapted to engage the upper end of the mass of fiber in the chamber and compress the fiber downwardly into and eventually push it out of the chamber, said lower fiber engaging means being adapted when said door-like members are opened to engage the lower end of the mass of fiber and move downwardly along with the upper fiber engaging means after the fiber is compressed substantially to a predetermined degree.

11. In a baling press for fiber and similar material,

a. a press frame embodying beams and tie members,

b. a pair of vertically oriented chambers into which the fiber is fed, said chambers being mounted in the frame,

0. means to fill the chambers one at a time with fiber,

means to restrain movement of fiber out ofthat end of each chamber while the chamber is in fiber receiving position and to allow fiber movement out of that end when the chamber is in position between said first restraining and said fiber Compressing means, and

h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes operatively to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.

12. In a baling press for fiber and similar material,

a. a press frame embodying beams and tie members,

b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in the frame,

c. means to hold the fiber in the chamber under initial compression which is lower than that of the finally compressed bale to be formed,

d. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber,

e. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber,

f. there being door-like means at the lower end of the chamber, supporting the fiber in the chamber prior to engagement thereof by the compaction and restraining means,

g. means to open said door-like means, whereby with the restraining means located adjacent the lower end of the chamber the fiber may be forced out of the chamber while in engagement between the compaction and restraining means, and

h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means. 

1. In a baling press for fiber and similar material, a. a press frame embodying beams and tie members, b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in the frame, c. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber, d. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber, e. door-like means at the lower end of the chamber and means to open said door-like means whereby with the compaction and restraining means located adjacent the respective ends of the chamber the fiber may be forced out of the chamber while confined between the compaction and restraining means, an f. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes operatively to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.
 2. Apparatus as defined in claim 1 in which said doors are of plate-like construction, whereby said doors are relatively thin thus permitting the restraining means to closely approach the end of the chamber prior to opening said doors.
 3. In apparatus for forming fibers and the like into a bale, a. a vertically arranged chamber into which the fiber is packed under an initial compression which is lower than that of the finally compressed bale to be formed, b. means adjacent the upper end of the chamber mounted for movement from fiber restraining position to withdrawn, fiber releasing position, c. a pair of door-like members mounted on the chamber and disposed when closed to prevent fiber from passing out of the lower end of the chamber, d. operating means for the fiber restraining means at the top of the chamber and the door-like members and effective when actuated in one direction to withdraw the fiber restraining means and open said door-like members and vice versa, and e. upper and lowwer fiber engaging means the uppermost of which is adapted when the upper fiber restraining means are withdrawn to engage the upper end of the mass of fiber in the chamber and compress the fiber downwardly into and eventually push it out of the chamber, said lower fiber engaging means being adapted when said doorlike members are opened to engage the lower end of the mass of fiber and move downwardly along with the upper fiber engaging means after the fiber is compressed substantially to a predetermined degree.
 4. Apparatus as defined in claim 3 including means positively to arrest the movement of the lower fiber engaging means, whereby continued downward movement of the upper fiber engaging means compressed the fibers to a predetermined degree of final compaction, thus to form the bale.
 5. Apparatus as defined in claim 3 in which the chamber is externally reinforced about its lower extent.
 6. Apparatus As defined in claim 3 in which the means to operate the upper fiber restraining means and door-like members comprises a linkage system interconnecting the same, said power means being included in said linkage system to move the linkages of said system in directions to remove the fiber restraining means adjacent the upper end of the chamber and said door-like members out of fiber restraining position and vice versa.
 7. In a baling press for fiber and similar materials, a. a press frame embodying beams and tie members, b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in the frame, c. means to hold the fiber in the chamber under initial compression which is lower than that of the finally compressed bale to be formed, d. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber, e. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber, f. there being door-like means at the lower end of the chamber and dogs adjacent the upper end thereof between which the fiber is held in the chamber prior to engagement thereof by the compaction and restraining means, g. means to open said door-like members and release said dogs, whereby with the compaction and restraining means located adjacent the respective ends of the chambers the fiber may be forced out of the chamber while confined between the compaction and restraining means, permitting final compression of the bale outside of said chamber, and h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.
 8. Apparatus for forming fibers and the like into bales, a. a generally vertically oriented chamber open at its top and bottom ends, b. a framework associated with said chamber comprising an upper beam passing generally horizontally across the chamber, c. tie members connected to the beam and holding it against movement relative to the chamber, d. an upper fiber compression means operatively associated with said upper beam and carrying a platen adapted to fit into the chamber and move downwardly through the chamber and out the lower end thereof, e. a lower fiber restraining means directly facing said compression means constructed and arranged to move away from the lower end of the chamber in line with the movement of the upper compression means, f. means to feed fiber into the upper end of the chamber, g. means adjacent the lower end of the chamber to hold fiber therein while the same is being fed into the chamber and the structure of said apparatus providing clearance between the lower end of the chamber nd said fiber restraining means sufficient to permit removal of the finished bale laterally while the restraining means is in its lowest position.
 9. Apparatus for forming fibers and the like into bales, a. a generally vertically oriented chamber open at its top and bottom ends, b. a framework associated with said chamber comprising an upper beam passing generally horizontally across the chamber, c. tie members connected to the beam and holding it against movement relative to the chamber, d. an upper fiber compression means operatively associated with said upper beam and carrying a platen adapted to fit into the chamber and move downwardly through the chamber and out the lower end thereof, e. a lower fiber restraining means directly facing said compression means constructed and arranged to move away from the lower end of the chamber in line with the movement of the upper compression means, f. means to feed fiber into the upper end of the chamber, g. means to hold said lower fiber restrainIng means in close proximity with the lower end of said chamber while the fiber is being fed into the chamber, and h. means adjacent the lower end of the chamber to hold fiber therein while the same is being fed into the chamber and the structure of said apparatus providing clearance between the lower end of the chamber and said fiber restraining means sufficient to permit removal of the finished bale laterally while the restraining means is in its lowest position.
 10. In apparatus for forming fibers and the like into a bale, a. a vertically arranged chamber into which the fiber is packed under an initial compression which is lower than that of the finally compressed bale to be formed, b. a pair of door-like members mounted on the chamber and disposed when closed to prevent fiber from passing out of the lower end of the chamber, c. operating means for the door-like members and effective when actuated in one direction to withdraw said door-like members and vice versa, and d. upper and lower fiber engaging means the uppermost of which is adapted to engage the upper end of the mass of fiber in the chamber and compress the fiber downwardly into and eventually push it out of the chamber, said lower fiber engaging means being adapted when said door-like members are opened to engage the lower end of the mass of fiber and move downwardly along with the upper fiber engaging means after the fiber is compressed substantially to a predetermined degree.
 11. In a baling press for fiber and similar material, a. a press frame embodying beams and tie members, b. a pair of vertically oriented chambers into which the fiber is fed, said chambers being mounted in the frame, c. means to fill the chambers one at a time with fiber, d. power driven compaction means at one end of one of the filled chambers adapted to enter said chamber and force the fiber out of the opposite end of said chamber, e. movable fiber restraining means at said opposite end of said filled chamber between which and said compaction means the fiber is held while being moved out of the chamber, f. means selectively to position the chambers in fiber receiving position and between said fiber restraining and fiber compressing means, g. means respectively associated with each chamber at its end adjacent said movable fiber restraining means to restrain movement of fiber out of that end of each chamber while the chamber is in fiber receiving position and to allow fiber movement out of that end when the chamber is in position between said first restraining and said fiber compressing means, and h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes operatively to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means.
 12. In a baling press for fiber and similar material, a. a press frame embodying beams and tie members, b. a vertically oriented chamber into which the fiber is fed, said chamber being mounted in the frame, c. means to hold the fiber in the chamber under initial compression which is lower than that of the finally compressed bale to be formed, d. power driven compaction means at one end of the chamber adapted to enter the chamber and force the fiber out of the opposite end of the chamber, e. movable fiber restraining means at said opposite end of the chamber between which and said compaction means the fiber is held while being moved out of the chamber, f. there being door-like means at the lower end of the chamber, supporting the fiber in the chamber prior to engagement thereof by the compaction and restraining means, g. means to open said door-like means, whereby with the restraining means located adjacent the lower end of the chamber the fiber may be forced out of the chamber while in engagement between the compaction and restraining means, and h. means to coordinate the movement of said compaction and restraining means whereby the fiber restraining means comes to rest against an adjacent beam of the press frame and remains against the same during final compression of the bale by the fiber compaction means. 